Grease-cup.



GREASE CUP. APPucAnoN ULEB Amz. |911.

Patented June 11, 1918` BY a MOL/ AUH/VEY omen amsn-cui'.

Specication of Letters Batent.

Application fled April 2, 1217. Serial Ec; 159,137.

' To all-:whom it may concer/n 'Ie it; known that I, Liiorn G. COPEMAN, a citiga'n of the United 'States,'residing 'at Flint, county of Genesee, State of AMichi- *i gan,"have invented4 a'certain. new and useful rovement in Grease-Cups, and declara t efnllowng to be va full, clear, and exact description'of the same, such as will enable others skilledin the art to which it 1 0 pertains to make and use 'the same, reference cul'had, to the' accompanyn drawings, whic form a'partfof this speci cation.'

This invention .relates to grease-cup lubrication', andhas 'for its object a grease-ca vsule especially designed. to work with an al; er.4 In my prior Patent escribe and claim a greasea plun er he stract'i'ng' pl #1,190,382, I capsule V in eombinationfwith adapted to'. pick rup thegreasefcapsule.

'20 present capsule is-designed to secure absolute: certainty ofthe plunger in picking the Figui-e 1' isa vertical section of .the grease- 26 lcip showing' the A capsule in place before it is collapsed.

Fig. 2 is fa similar section showing the c geule after it is collapsed.

ig. `e", shows Vthe capsule picked up by the plunger..

F1g.4.shows a section of the capsule.

v --Fig. 5 shows the tendency of the domed capsulef'incollapsing.

.Iemploy a plunger a provided with a threaded Astein b which is threaded into Vthe `'cap of the .grease-cup. r'ovided 'with a large portion which can 'Y furnished with asuitable gasket to prevent the escape'of the lubricant behind the plunger,l and itis further provided with a reduced portion c vwhich forms an annular groove d. This much of the construction is old and is shown inmy prior patent. However, in the prior construction, altho h in a great percentage of the cases t e [pl er'will pick up the capsule, it is not 'a'.bsc utely certain t0 pickit up.

"stance out cof-which the capsule is made This plunger a 1s The subnot alwaysbe driven up into theannulai groove d b`ut bythe use of a domed capsuL or one' whose closed end wall is of substan tially greater area than the cross section o the capsule. This allows the reduced sec tion of the plunger to get in beyond the sid walls of 'the capsules before the pllin; stress on the head of the capsule tends t curl the top of thecylinder portion over`int the annular, groove. This is ell shown i: Fig. 5. This inevitably draws the capsul substance into the groove d, while with flat top sometimes the top of the cylinde portion of the capsule will crush inwar or fold down with the head and not get int the oove.

I ave found thata gelatincapsule or capsule made of similar material, worls very well in this connection, as will also paper capsule, Of course, I do no wish t e limited to a capsule of any p rticule material except in so far as limited in tl claims.

What I claim is:

1. A greasecup provided with a plung or follower, and a domed capsule contain( therein, the said plunger or follower beir provided with a recess into which the dome capsule material Iis driven in collapsing tl capsule. i Y

2. The combination of a follower provided with a re uced porti( forming an annular groove, and a doml capsule contained in said grease-cup, tl material 'in said capsule being forced in and engaging the groove in collapsing tl ease-cup,

3.` A grease-cup provided with a plun or follower having an annular groove an capsule whose closed end in contact wi the plunger is shaped to have a great areathan the cross section, the material said capsule being forced into and engagn thegroove in col apsin the capsule.

In testimony whereo I sign this speci cation.

LLOYD G. COPEMAN.

Patent-ea June 11, 1ers. 

